This course will demonstrate how 3D printers work, show what people make with them, and examine the 3D printing ecosystem. It will also explore the future of 3D printing and discuss how this technology will revolutionize our world. The course materials include informative video lectures, on-location interviews with a variety of 3D printing experts, and engaging hands-on exercises. Learners who complete this introductory course will have a solid understanding of 3D printing and its revolutionary potential, and will be able to print and customize 3D designs.
This course was listed in the top 50 MOOC's of all time by Class-Central (https://www.class-central.com/report/top-moocs/)

From the lesson

Module 1: What Is 3D Printing?

In this module, you will learn what 3D Printing is, how 3D Printers work, and the types of objects you can make using this technology.